Source : Webster's Revised Unabridged Dictionary (1913)

Unroofed \Un*roofed"\, a.
   1. [Properly p. p. of unroof.] Stripped of a roof, or similar
      covering.

            Broken carriages, dead horses, unroofed cottages,
            all indicated the movements.          --Sir W.
                                                  Scott.

   2. [Pref. un- not + roofed.] Not yet roofed.

Source : WordNet®

unroofed
     adj : having no roof; "an unroofed shed"